package com.manshu.manshuweb.common;

import lombok.extern.slf4j.Slf4j;
import org.springframework.lang.Nullable;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@Slf4j
public class MyInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
       log.info("我是前置拦截器 start");
        return true;
    }
    @Override
    public  void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, @Nullable ModelAndView modelAndView) throws Exception {
        log.info("我是后置拦截器 start");
        request.setAttribute("name","你好呀");
        log.info("我是后置拦截器 end");
    }
    @Override
    public  void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, @Nullable Exception ex) throws Exception {
        log.info("我是最终拦截器 start");
        log.info("aa"+request.getAttribute("name"));
        log.info("我是最终拦截器 end");
    }
}
